Home / 30,363.81-41,905.72-17,788.56

Finding the Fourth Proportional to 30,363.81, 41,905.72 and 17,788.56

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Solution

The fourth proportional to 30,363.81, 41,905.72 and 17,788.56 is: 24,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.81 : 41,905.72 = 17,788.56 : x
  2. Step 2: Convert to fraction form
    30,363.81/41,905.72 = 17,788.56/x
  3. Step 3: Cross multiply
    30,363.81x = 41,905.72 × 17,788.56
  4. Step 4: Simplify right side
    30,363.81x = 745,442,474.86
  5. Step 5: Solve for x
    x = 745,442,474.86/30,363.81
  6. Step 6: Final answer
    x = 24,550.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.